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Originally Posted by 740I_yeye
I am on the exact same position I have the same amount of miles and same car exactly. I get around 17mpg in the city max - this is UK mpg not US So it would have to be converted but I’m pretty sure it’s still bad.... I drive really lightly as there isn’t really space to push the car with the occasional acceleration. I drive in a combination of comfort and sport but mainly comfort. My car is completely stock although I do have a drivetrain warning related to a misfire that comes and goes. Bmw is still investigating that but I doubt it’s related to my mpg.
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Misfiring could be caused by spark plugs, coil pack, bad injectors etc. that could definitely impact your fuel economy as your car may be running inefficiently.